Microchip PIC16F13143 Manual

Microchip Ikke kategoriseret PIC16F13143

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Online Reference

DS50003666A - 1

CLB Synthesizer

The PIC16F13145 family of microcontrollers introduce a new peripheral, the Congurable Logic Block (CLB).

The CLB peripheral, comprised of 32 Basic Logic Elements (BLE), allows the users to incorporate hardware-

based custom logic into their applications. Each logic element’s Look-up Table (LUT) based design oers

vast customization options, and the CPU-independent operation improves the response time and power

consumption.

The user must congure elements as matrix multiplexers, LUTs, and ip-ops to achieve a given logic function,

which is similar to the Congurable Logic Cell (CLC) on PIC

MCUs or the Congurable Custom Logic (CCL) on the

AVR

MCUs. However, the matrix is much larger and is interconnected to a higher degree - which enables users

to make more complex logic functions. To help users focus on the intended functionality of their logic design

without having to understand the inner workings of the peripheral, Microchip provides a GUI (CLB Synthesizer)

used for Congurable Logic Block conguration.

Tool Versions: MCC-Integrated and Stand-Alone-Online

The available conguration tool has two versions: One integrated into MCC Melody and one online, stand-alone

version.

CLB Synthesizer - MCC Melody: The version of the tool integrated into MPLAB

Code Congurator (MCC)

Melody allows one to create a logic design from scratch or to import a logic design from the online version of

the tool. It enables the user to develop a complete application using the CLB in MCC Melody and oers a high

level of integration with other peripherals also congured using MCC Melody.

CLB Synthesizer - Online: The tool's online version allows one to create a logic design, synthesize it, and

download it as a le (bitstream). In addition to the bitstream, a template source code is provided for conguring

the CLB, but integrating it into the embedded project is left up to the user.

The logic conguration experience is common to both versions of the tool, so the tool's online version can be

used to start a logic design using the CLB before moving to MCC Melody for further development.

Congurable Logic Block Synthesizer User Guide

CLB Synthesizer

Online Reference

DS50003666A - 2

Table of Contents

CLB Synthesizer.....................................................................................................................................................................1

Tool Versions: MCC-Integrated and Stand-Alone-Online .........................................................................................1

1. Getting Started...............................................................................................................................................................4

2. Drawing a Schematic.....................................................................................................................................................5

2.1. Components in CLB Synthesizer...................................................................................................................... 5

2.2. Drawing a Basic Schematic............................................................................................................................. 11

3. Status of the Synthesis Process.................................................................................................................................13

4. Tips and Tricks............................................................................................................................................................. 14

4.1. How to Make use of Limited Display Resources.......................................................................................... 14

4.2. Tidying up a Design......................................................................................................................................... 15

5. Interacting with Peripherals and the CPU................................................................................................................ 17

5.1. Interacting with Peripherals........................................................................................................................... 17

5.2. Interacting with the CPU................................................................................................................................. 18

6. Storing and Retrieving Logic Designs........................................................................................................................20

7. Using Hierarchical Modules....................................................................................................................................... 21

7.1. Using Verilog to Describe a Logic Design......................................................................................................22

8. Libraries and Modules................................................................................................................................................ 24

8.1. The Built-In PIC16F131 Device Library...........................................................................................................24

8.2. Using the Hardware Counter..........................................................................................................................24

8.3. Using Modules from the Microchip Library.................................................................................................. 25

8.4. Using Modules from a Custom Library......................................................................................................... 25

8.5. Creating a Library with Modules.................................................................................................................... 26

9. Advanced Topics..........................................................................................................................................................30

9.1. Clocking the Congurable Logic Block.......................................................................................................... 30

9.2. Preferences.......................................................................................................................................................30

9.3. Making Use of the Output ZIP........................................................................................................................ 31

9.4. Description of Output Files.............................................................................................................................31

9.5. Synthesis and Place-and-Route Process....................................................................................................... 32

10. Known Issues and Change Log..................................................................................................................................34

11. Revision History...........................................................................................................................................................35

Microchip Information....................................................................................................................................................... 36

The Microchip Website............................................................................................................................................... 36

Product Change Notication Service........................................................................................................................ 36

Customer Support.......................................................................................................................................................36

Microchip Devices Code Protection Feature............................................................................................................ 36

Legal Notice..................................................................................................................................................................36

Trademarks.................................................................................................................................................................. 37

Quality Management System.....................................................................................................................................38